Summary
On 7 October 2014, an Airbus A330-300 failed to maintain the runway centreline as it touched down at Montréal in suddenly reduced forward visibility and part of the left main gear departed the runway edge, paralleling it briefly before returning to it and regaining the centreline as the landing roll was completed. The Investigation attributed the excursion to a delay in corrective action when a sudden change in wind velocity occurred at the same time as degraded visual reference. It was found that the runway should not have been in use in such poor visibility without serviceable lighting.
https://www.skybrary.aero/index.php/...f5e3-276530305